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ikadub [295]
4 years ago
10

If the radius of one of the semicircles is 7 meters, what is the circumference of one of the semicircles?

Mathematics
2 answers:
lawyer [7]4 years ago
8 0

Answer:The answer is 43.96

ENjoy


svp [43]4 years ago
6 0

Answer:

21.98 m

. i had this question on my test, good luck~ <3

.

:)

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2. A(an) ______________of a prism is a perpendicular segment that joins the planes of the bases. (The height h is the length of
tiny-mole [99]

Answer:

A(an)   <u> altitude  </u>  of a prism is a perpendicular segment that joins the planes of the bases. (The height h is the length of one.)

Step-by-step explanation:

AN ALTITUDE -  An altitude of a triangle is a line segment that passes through a vertex and is perpendicular to (i.e. forms a right angle with) the base line (the side opposite the vertex). The expanded base of the altitude is the line that contains the opposing side. The foot of the altitude is the point where the extended base meets the altitude. The area of a triangle can be calculated using altitudes: one half of the product of an altitude's length and its base's length equals the triangle's area. As a result, the longest altitude is perpendicular to the triangle's shortest side. Through trigonometric functions, the heights are also connected to the triangle's sides.

<u>Hence , the answer is an altitude .</u>

6 0
3 years ago
Is 721 ft above sea level positive, zero,negative ?
mylen [45]

Answer:

Well it is ABOVE sea level, so its positive.

Sea level would be considered zero, and if it was below sea level it would be considered negative.

I hope this helped you ♥  ♥

6 0
3 years ago
-9 is less than or equal to x and 7 is greater than or equal to x
const2013 [10]
Plot a point at "-9" and the other at "7". Both dots will be shaded in.
8 0
3 years ago
Assume that T is a linear transformation. Find the standard matrix of T. T: R^3 right arrow R^2 , T(e 1) =(1,2), and T(e2 ) =( -
irina [24]

Answer:

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

Step-by-step explanation:

Given

T:R^3->R^2

T(e_1) = (1,2)

T(e_2) = (-4,6)

T(e_3) = (2,-6)

Required

Find the standard matrix

The standard matrix (A) is given by

Ax = T(x)

Where

T(x) = [T(e_1)\ T(e_2)\ T(e_3)]\left[\begin{array}{c}x_1&x_2&x_3\\-&&x_n\end{array}\right]

Ax = T(x) becomes

Ax = [T(e_1)\ T(e_2)\ T(e_3)]\left[\begin{array}{c}x_1&x_2&x_3\\-&&x_n\end{array}\right]

The x on both sides cancel out; and, we're left with:

A = [T(e_1)\ T(e_2)\ T(e_3)]

Recall that:

T(e_1) = (1,2)

T(e_2) = (-4,6)

T(e_3) = (2,-6)

In matrix:

(a,b) is represented as: \left[\begin{array}{c}a\\b\end{array}\right]

So:

T(e_1) = (1,2) = \left[\begin{array}{c}1\\2\end{array}\right]

T(e_2) = (-4,6)=\left[\begin{array}{c}-4\\6\end{array}\right]

T(e_3) = (2,-6)=\left[\begin{array}{c}2\\-6\end{array}\right]

Substitute the above expressions in A = [T(e_1)\ T(e_2)\ T(e_3)]

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

Hence, the standard of the matrix A is:

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

6 0
3 years ago
Write the equation of the line passing through (0,-8),with slope of -1/2, in slope-intercept form _____?
Vadim26 [7]
The equation would be Y= 1/2x -8
8 0
3 years ago
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